Door/window sensor



FIG. 1 is a top front perspective view of an embodiment of a door/windowsensor showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines (where present) in all FIGS. illustrate portions of thedoor/window sensor that form no part of the claimed design. The shadelines in the drawings show contour and not surface ornamentation.

CLAIM The ornamental design for a door/window sensor, as shown anddescribed.